Polymarket prediction market data — events, markets, orderbooks, prices, analytics. Token-efficient, rate-limited MCP server for the Sidereal platform.
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# polymarket-blade-mcp Polymarket prediction market data — events, markets, orderbooks, prices, analytics. Token-efficient, rate-limited MCP server for the [Sidereal](https://sidereal.cc) platform. ## Why another Polymarket MCP? | Feature | **polymarket-blade-mcp** | prediction-mcp | IQAIcom | caiovicentino | |---------|-------------------------|----------------|---------|---------------| | Tools | **22** | 12 | 19 | 45 | | Trading | Write gates (v2) | No | Ungated | Safety limits | | Token efficiency | Pipe-delimited, batching | Cache + scoring | Raw JSON | Text formatting | | Rate limiting | Per-endpoint token buckets | No | No | Configurable | | Tests | **99** | 5,767 lines | Zero | 3,688 lines | | Type safety | mypy strict | TypeScript | TypeScript | Pydantic | | Auth required | **None** (public APIs) | None (PM) / API key (Kalshi) | Wallet key | Wallet key | | Sidereal marketplace | Certified | Community | N/A | N/A | | License | MIT | MIT | MIT | MIT | ## What this MCP covers Three Polymarket APIs, all public (no credentials): - **Gamma API** — events, markets, tags, search, sports (discovery) - **CLOB API** — orderbooks, prices, midpoints, spreads, price history (pricing) - **Data API** — open interest, top holders, leaderboard, volume (analytics) ## Quick Start ### Claude Code / Claude Desktop ```json { "mcpServers": { "polymarket": { "command": "uvx", "args": ["polymarket-blade-mcp"] } } } ``` ### From source ```bash git clone https://github.com/Groupthink-dev/polymarket-blade-mcp cd polymarket-blade-mcp make install-dev make run ``` ## Configuration All optional — the server works with zero configuration. | Variable | Default | Description | |----------|---------|-------------| | `POLYMARKET_GAMMA_HOST` | `https://gamma-api.polymarket.com` | Override Gamma API host | | `POLYMARKET_CLOB_HOST` | `https://clob.polymarket.com` | Override CLOB API host | | `POLYMARKET_DATA_HOST` | `https://data-api.polymarket.com` | Overr…
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